Zircon U-Pb Geochronology Links the End-Triassic Extinction with the Central Atlantic Magmatic Province

@article{Blackburn2013ZirconUG,
  title={Zircon U-Pb Geochronology Links the End-Triassic Extinction with the Central Atlantic Magmatic Province},
  author={Terrence Blackburn and Paul E. Olsen and Samuel A. Bowring and Noah M. McLean and Dennis V. Kent and John H Puffer and Greg McHone and E. Troy Rasbury and Mohammed Et-Touhami},
  journal={Science},
  year={2013},
  volume={340},
  pages={941 - 945}
}
Life Versus the Volcanoes Correlating a specific triggering event, such as an asteroid impact or massive volcanism, to mass extinction events is clouded by the difficulty in precisely timing their occurrence in the geologic record. Based on rock samples collected in North America and Morocco, Blackburn et al. (p. 941, published online 21 March) acquired accurate ages for events surrounding the mass extinction that occurred ∼201 million years ago, between the Triassic and Jurassic Periods. The… 
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U-Pb ages show Earth’s youngest flood basalt province erupted in 750 ka starting ~16.65 Ma during Miocene global warming, indicating that the onset of flood volcanism is nearly contemporaneous with that of the MMCO.
U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction
TLDR
U-Pb zircon geochronology is applied to Deccan rocks and it is shown that the main phase of eruptions initiated ~250,000 years before the Cretaceous-Paleogene boundary and that >1.1 million cubic kilometers of basalt erupted in ~750,000 Years.
Effects of the Triassic-Jurassic Central Atlantic Magmatic Event Recorded in Continental Strata in Western Pangea: The δ13C Record of Warner Valley & Zion National Park
The Triassic is a period of abrupt climate change bracketed by mass extinctions including one driven by the eruption of the Central Atlantic Magmatic Province (CAMP) in the Late Triassic. The Moenave
Mercury anomalies and the timing of biotic recovery following the end-Triassic mass extinction
TLDR
Hg isotopes display no significant mass independent fractionation within the extinction and depauperate intervals, consistent with a volcanic origin for the Hg, and indicate that significant biotic recovery did not begin until CAMP eruptions ceased.
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References

SHOWING 1-10 OF 121 REFERENCES
Terrestrial and marine extinction at the Triassic-Jurassic boundary synchronized with major carbon-cycle perturbation: A link to initiation of massive volcanism?
Mass extinction at the Triassic-Jurassic (Tr-J) boundary occurred about the same time (200 Ma) as one of the largest volcanic eruptive events known, that which characterized the Central Atlantic
A new chronology for the end-Triassic mass extinction
Compound-specific carbon isotopes from Earth’s largest flood basalt eruptions directly linked to the end-Triassic mass extinction
TLDR
It is shown that carbon isotopes of leaf wax derived lipids, wood, and total organic carbon from two orbitally paced lacustrine sections interbedded with the CAMP in eastern North America show similar excursions to those seen in the mostly marine St. Audrie's Bay section in England.
Astronomically tuned geomagnetic polarity timescale for the Late Triassic
Cycle stratigraphic and magnetostratigraphic analyses of a -5000-m-thick composite section obtained by scientific coring in the Newark rift basin of eastern North America provide a high-resolution
Synchrony of the Central Atlantic magmatic province and the Triassic-Jurassic boundary climatic and biotic crisis
The evolution of life on Earth is marked by catastrophic extinction events, one of which occurred ca. 200 Ma at the transition from the Triassic Period to the Jurassic Period (Tr-J boundary),
The quest for chron E23r at Partridge Island, Bay of Fundy, Canada: CAMP emplacement postdates the end-Triassic extinction event at the North American craton
The Partridge Island stratigraphic section at the Bay of Fundy, Maritime Canada, reveals a continental sedimen- tary succession with the end-Triassic mass extinction level closely followed by basalts
New evidence for geologically instantaneous emplacement of earliest Jurassic Central Atlantic magmatic province basalts on the North American margin
Dikes in the southeastern United States represent a major component of the Central Atlantic magmatic province and record kinematics of Pangean breakup near the critical, predrift junction of three
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